Quartz (McEarl Pocket 1982), McEarl Mine, Blue Springs, Garland Co., Arkansas, USA, Cabinet, 16.8 x 2.9 x 2.8 cm, Very few quartz localities in the world can match the elongated, glassy and gemmy, colorless crystals from the McEarl find at this famous deposit., For sale from The Arkenstone, www.iRocks.com. For more details on this piece and others, visit http://www.irocks.com/minerals/specimen/45214

Herkimer Diamonds are actually Quartz crystals that come from the area around Herkimer Co., New York. The name is often used, generically, to describe Quartz crystals that are very clear or double-terminated. They are found in pockets, or vugs, in the surrounding sedimentary rock, or weathered out into stream beds.